Debug Form doesn't show for RPC in DocService

The DocService doesn’t show any Debug Form options under the endpoint definitions:

I have tried the following:

    private val grpcServiceBuilder: GrpcServiceBuilder = GrpcService.builder()
        .supportedSerializationFormats(GrpcSerializationFormats.PROTO)
        .supportedSerializationFormats(GrpcSerializationFormats.PROTO_WEB)
        .supportedSerializationFormats(GrpcSerializationFormats.PROTO_WEB_TEXT)
        .supportedSerializationFormats(GrpcSerializationFormats.JSON)
        .supportedSerializationFormats(GrpcSerializationFormats.JSON_WEB)
        .enableUnframedRequests(true)

Also I have seen this issue: https://github.com/line/armeria/issues/1134

But no luck. Does anyone know what is happening and maybe we can improve the documentation for future users?

[Dogacel]

because JSON serialization does not run with proto3 optional fields.

As far as I know, protobuf-jackson supports optional since 2.0.0 curioswitch/protobuf-jackson#7 You can also set Gson as a json marshaller.

https://github.com/line/armeria/blob/8df42aa225af877ef13781ec1b27c1fe0ce37883/grpc/src/main/java/com/linecorp/armeria/common/grpc/GrpcJsonMarshaller.java#L71

If you encounter another issues except what we have known, please let us know.

I am not 100% sure but the comment might be outdated because this bug has been resolved recently (relatively). I will double check that and write back.

Oops, I didn’t know about it. 😄 bloomRPC does render it by default? Anyway, it would be nice if we support those fields as well. 😄

Yeah, BloomRPC just dumps every possible field as an example. There is no difference between a oneof field and optional field tho but I the current implementation is good enough.

Oops, I didn’t know about it. Could you give us a link to it or provide a simple reproducible example so we can take a look at it?

We have been using the library in the company’s private project so I need some time to reproduce this in a sample project and come back to you.

[minwoox]

Hey! Could you just try with this?

GrpcService.builder()
           .enableUnframedRequests(true)
           .addService(...)
           .build()

builder.supportedSerializationFormats(...) overwrites the values previously set, so I think only GrpcSerializationFormats.JSON_WEB is set by the code you pasted. Also, all serialization formats are set by default so you don’t need to set them explicitly. 😉